Stove pipe threadeb and beader



2 Sheets-Sheet 1.

(No Model.)

E. 44,341.1.. Y STOVE PIPE THREADER AND BBADER.

No. 244,420. Patented July 19,1881'.

N. PETERS, Ptmwumngnpnar. wnshngmn. D. c

2'Sheets-Shee1s 2. E. lVLBALL. STOVE PIPE THREADZER AND BEADER.

(No Model.)

Patented July 19,-A 1881;

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n PETERS. Hummm-1MM" 'UNITED STATES PATENT OFFICE.

EDWARD M. BALL, OF HATLEY, ASSIGNOR TO SAMUEL CLEVELAND, OF NORTHCOATIGOOK, QUEBEC, CANADA.

STOVE-PIPE THREADER AND BEADER.

SPECIFICATION forming part of Letters -Patent No. 244,420, dated July19, 1881,

` Application filed June 1,1881. (No model.)

To all whom t may concern:

Be it known that 1, EDWARD M. BALL, a citizen of Canada, residing atHatley, in the county of Stanstead and Province of Quebec, haveinventedcertain new and useful Improvements in Stove-Pipe Threaders and Beaders;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadtothe accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification, and in which-Figure l is a side elevation of a machine embodying my invention. Fig. 2is an elevation showing that end which is at the left in Fig. 1. Fig. 3is a vertical section of the same, showing those parts which are to therightin Fig. 1. Fig. 4 is a rear-end view of the handcranlr andoperating-gears; and Fig. 5 is a longitudinal central sectional view.

This invention 'relates to improvements in stove-pipe machines, and hasfor its object the forming of a screw-thread and forming the usual beadat one and the same time on the ends of stove-pipe; means for giving therequisite pitch to such screw-thread; means whereby the beading-rollsare maintained at the same relative position with that of the frame ofthe machine; means for permitting the seams of the pipe to pass readilybetween the beading and screw-threadin g rolls; in the face-plate andits adjustment devices, whereby the distance of the bead from the endsof the pipes may be varied; and means whereby the power of the hand onthe hand-crank is greatly augmented.

rlhe nature of the invention consists of the devices substantially ashereinafter more fully set forth and claimed.

In the accompanying drawings, A is the frame of thc machine, whichsupports the shafts B and C, a portion of whose rear ends isscrew-threaded, and which work in correspondingly screw-threadedbearings in the rear vertical portion of the frame A. One of theseshafts has a right-hand thread, the other a left-hand thread, thedrawings representing the shaft B provided with righthand thread.

The forward vertical portion of the frame Ais bifurcated, as shown inFig. 3, in which the boxes q r are fitted. The box 1" rests in thebottom of the bifurcation, while the box q is separated from the box rby means of a spring, s. Lateral motion of the said boxes is preventedby lateral anges on each box, which overlap the edges of the frame A,which thus serve as ways for the boxes.

Superimposed on the box g, and lying between it and the follower g, is aspring, h, preferably of rubber, which may be compressed by means of thehand-screwf, serew-threaded and workingin the cap t. The lower extremityof this hand-screw bears on the top face of the follower g.

Securely fastened to the shaft B, immediately forward of the frameA, isthe male screwthreading roll l. Just below this, and'similarly securedto the shaft C, is the female screw-threading roll m. The ends of theshafts B and C, which project forward of the rolls Z in, are providedwith feather-keys p p', which fit in keyways in the beading-rolls j 7c,in order to compel the said rolls to revolve when the shafts B and G areput in motion. By means of spring-bars a o, which hook into thecircumferential grooves near the forward ends of the beading-rolls j la,the said beading-rolls are maintained at the same distance from theframe A, the shafts B and C sliding freely through when the machine isat work.

The face-plate D is made adjustable by means of its supporting-screwst",projectingthrough holes in the frame A for that purpose. The said screwsare provided with nuts, two to each, which are screwed against the sidesof that portion of the frame A, as shown in Fig. l, thus making itpossible to adjust the faceplate Dat therequired distance from the frameA, and at the desired anglewith the same.

To cause the shafts B and G to revolve at the same relative rate ofspeed, they are provided with gear-wheels a, b, of equal diameters andsecurely fastened to their respective shafts, and to prevent theirWorking relations from being injuriously affected by the varying dis-IOO rear as possible, and yet have them within the vertical portions ofthe frame A.

The rear extremity of the shaft B carries, loosely mounted thereon,apinion, c, to which the hand-crank eis attached in anysecure manner.This pinion gears with a larger wheel, d, keyed or otherwise fastened tothe shaft C. It will thus be seen that the power of the hand on thecrank e will be augmented in proportion to the difference iu the sizesof the gears c d.

When screw-threading and beading stovepipe it is placed on the lowerrolls, as shown in Fig. 1, E representing a longitudinal section of pipebeing operated on. The handscrew f is then screwed down until thepressure is sufficient to properly groove or thread the pipe, when thehandle e is turned in the direction of the arrow in Fig. 4, which willgive aright-handcd thread on the pipe. In passing seams of the pipebetween the rolls the spring h will yield sufliciently to prevent damageto the machine.

For left-hand screw-threading, the pipe is placed on the upper rolls,when the operation of the machine will be similar in all respects.

Vhen it is desired to screw-thread pipe without beading, thebeading-rolls may be removed.

When it is desired to bead pipe without screw-threadin g, thescrew-threadin g rolls may be removed.

Having thus described my invention, I claim as new and desire tosecureby Letters Patent- 1. The combination of the frame A, shafts B C,provided with threading-rolls and moving in screw-threaded bearings, andgearing a b c d, the gear c revolving loosely around its shaft, as andfor the purpose set forth.

2. The circumferentially-grooved beadingrollsj k, in combination withshafts B C,bars n o, and frame A, as and for the purpose set forth.

3. The circumferentially-grooved beadingrollsy k, in combination withshafts B C, bars u o, adjustable face-plate, and frame A, substantiallyas shown and described.

4. The combination of the screw-threaded shafts B C, moving inscrew-threaded bearings, rolls j 7c and im, adjustable plate D, theshaftB, held down at its outer end by a yielding bearing, and means foroperating said shafts B C, as and for the purpose set forth.

In testimony whereof I aix my signature in presence of two witnesses.

EDWARD M. BALL.

Witnesses:

W. H. GILMAN, E. S. WIsWELL.

